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What can you do to conserve energy?
You can perform reversible Work: stretching a spring - you can look at some old watches and see the mechanism. you can put electric current into a Capacitor.
How much a 5-pound weight would stretch the spring?
It depends on spring energy or spring strength
What is it called when the coils of a spring are spread out?
The spring has been stretched. When the coils are squeezed together then the spring has been compressed.
Why is a spring needed in the lock of a door?
Without a spring, the lock would never unlock. Therefore, a lock of a door required a spring.
Suggest suitable Experiments to find spring constant of a helical spring?
Connect a mass to the bottom of the spring. (depending on the spring size, the mass will vary, the larger the spring the greater the mass u can use) Suppose you use a 100 g mass on a spring, measure the amount by which it stretches and record the data. Use hooke law to figure out the constant of the spring. K = m.g/x m = mass, g =gravity, x = stretch
A metallic weight is suspended from a metal spring. If now a current is passed through the spring which will happen?
With the information given, the spring will contract and lift the weight.
What happens when a direct current is passed through a helical spring?
in an adjacent coils ,the current flows in same direction so there is force of attraction shortening the coils.
Why does a metal spring contract when an electric current is passed through it?
due to magnetic fields produced which attract each other since parallel current carrying conductors attract each other
What happen when electric current is passed through water'?
when electric current is passed through acidified water hydrogen gas is released at the cathode..
What happens when electric current is passed through acidified water?
when electric current is passed through acidified water hydrogen gas is released at the cathode..
What is Primary Current?
Primary current is a flow to be measured that cannot be safely passed through the measuring device. A current transformer is used to provide a lower level, secondary current that can be passed safely through the measuring device. Primary current is measured as a secondary current, multiplied by the turns ratio in the current transformer.
What did colonists call coercive acts passed by parliament in spring of 1774?
never
What did colonists call the Coercive Acts passed by Parliament in spring of 1774?
never
What did colonists call the coercive acts passed by Parliament spring of 1774?
never
Why D.C. current is not passed from our body?
Lightning is a DC current and it will pass through your body with devastating effect. Defibrillators use a DC current to restart/reset your heart if it has stopped or gone into fibrillation. So DC current is passed through your body.
Do the conductors charge when a current is passed through them?
yes
Does nichrome wire get red hot when current is passed through it?
Yes ,due to heating effect of current.
